adding a third column on blogger

want to add a third column to your blogspot? this site is the best i've found, I am severely html impaired and only took about 2 hours for me, but for you? probably fifteen minutes! I have to admit that I am not sure I like it but will give it a whirl, I like a cleaner simpler look to a blog. I am thinking of offering advertising spots on my blog, thus the third column. here is the site, three column bogger.

just a quick note on banner size, it needs to be 928 by 100 px to fit within the outline for the 'minima' layout.